:root{
    color-scheme:light;
    --bg:#F7F7F5;
    --surface:#EEEEEB;
    --surface-2:#E4E4E0;
    --ink:#111111;
    --ink-soft:#383838;
    --muted:#666666;
    --accent:#D11F1A;
    --accent-soft:rgba(209,31,26,0.22);
    --accent-line:rgba(209,31,26,0.2);
    --sea:#1D4E9E;
    --sea-line:rgba(29,78,158,0.2);
    --font-disp:'Zen Kaku Gothic New', sans-serif;
    --font-body:'Noto Sans JP', sans-serif;
    --font-mono:'Barlow Condensed', sans-serif;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
  }

  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--font-body);
    line-height:1.95;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;}
  ::selection{background:var(--accent-soft);}

  .wrap{max-width:1080px; margin:0 auto; padding:0 24px;}

  /* ===== HERO ===== */
  .hero{
    position:relative;
    min-height:100svh;
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    overflow:hidden;
    padding:72px 16px 96px;
    text-align:center;
    background:radial-gradient(ellipse at 50% 42%, rgba(209,31,26,0.07), transparent 62%), var(--bg);
  }
  .hero-rings{position:absolute; inset:0; width:100%; height:100%; pointer-events:none;}

  .meta-bar{
    position:relative; z-index:2;
    display:flex; justify-content:space-between; align-items:center; gap:12px;
    width:100%; max-width:1080px;
    font-family:var(--font-mono); font-size:11px; letter-spacing:0.08em;
    color:var(--muted);
    margin-bottom:clamp(24px,5vw,44px);
  }
  .meta-bar span:first-child{color:var(--accent);}

  .kicker{
    position:relative; z-index:2;
    font-family:var(--font-mono); font-size:11px; letter-spacing:0.24em;
    color:var(--accent); text-transform:uppercase; margin:0 0 22px;
  }

  .hero-map{
    position:relative;
    width:min(560px, 88vw, 56svh);
    min-width:min(300px, 88vw);
    aspect-ratio:1/1;
    margin:0 auto 34px;
    z-index:2;
  }
  .seal{
    position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
    width:clamp(88px,22vw,128px); height:clamp(88px,22vw,128px);
    border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    background:radial-gradient(circle at 35% 30%, #FFFFFF, #F1F1EE 78%);
    border:2px solid var(--accent);
    box-shadow:0 0 0 7px rgba(209,31,26,0.07), 0 10px 40px rgba(209,31,26,0.14);
    z-index:3;
  }
  .seal-glyph{
    font-family:var(--font-disp); font-weight:900;
    font-size:clamp(38px,9vw,54px); color:var(--accent); line-height:1;
  }

  .orbit-line{position:absolute; border-radius:50%; border:1px solid var(--accent-line);}
  .orbit-line.r1{inset:22%; border-style:dashed; border-color:var(--sea-line);}
  .orbit-line.r2{inset:6%;}

  .pillar{
    position:absolute;
    width:clamp(62px,17vw,98px); height:clamp(62px,17vw,98px);
    top:var(--y); left:var(--x);
    transform:translate(-50%,-50%);
    border-radius:50%;
    background:rgba(255,255,255,0.95);
    border:1px solid var(--accent-line);
    box-shadow:0 4px 14px rgba(17,17,17,0.06);
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    text-decoration:none;
    color:var(--ink-soft);
    font-size:11px;
    text-align:center;
    padding:4px;
    animation:drift var(--duration,34s) ease-in-out infinite;
    animation-delay:var(--delay,0s);
    transition:border-color .25s, color .25s, background .25s;
  }
  .pillar:hover, .pillar:focus-visible{
    border-color:var(--accent); color:var(--ink); background:#FFF4F3;
    animation-play-state:paused;
  }
  .pillar:focus-visible{outline:2px solid var(--accent); outline-offset:3px;}
  .pillar-num{font-family:var(--font-disp); font-weight:700; font-size:18px; color:var(--accent); line-height:1; margin-bottom:3px;}
  .pillar-jp{font-size:11px; font-weight:500; line-height:1.3;}
  .pillar-en{display:block; font-family:var(--font-mono); font-size:8px; color:var(--muted); margin-top:2px; letter-spacing:0.1em;}

  @keyframes drift{
    0%,100%{margin-top:0; margin-left:0;}
    50%{margin-top:-8px; margin-left:5px;}
  }

  .hero-name{
    position:relative; z-index:2;
    font-family:var(--font-disp); font-weight:900;
    font-size:clamp(34px,6vw,56px); letter-spacing:0.04em;
    margin:0 0 6px; line-height:1.2;
  }
  .hero-title{
    position:relative; z-index:2;
    font-family:var(--font-disp); font-weight:700;
    font-size:clamp(22px,3.6vw,34px);
    line-height:1.55; margin:0 0 18px; color:var(--accent);
    text-wrap:balance;
  }
  .hero-lead{
    position:relative; z-index:2;
    font-size:15px; color:var(--ink-soft);
    max-width:540px; margin:0 auto 26px;
  }
  .hero-guide{
    position:relative; z-index:2;
    font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.1em; color:var(--muted); margin:0;
  }
  .scroll-hint{
    position:absolute; bottom:24px; left:50%; transform:translateX(-50%);
    font-family:var(--font-mono); font-size:11px; color:var(--muted);
    letter-spacing:0.12em; text-decoration:none;
    display:flex; flex-direction:column; align-items:center; gap:6px; z-index:2;
  }
  .scroll-hint::after{
    content:''; width:1px; height:26px; background:linear-gradient(var(--accent), transparent);
    animation:pulse-line 2.4s ease-in-out infinite;
  }
  @keyframes pulse-line{0%,100%{opacity:.3;}50%{opacity:1;}}

  /* ===== SECTIONS ===== */
  section.pillar-sec{padding:104px 0; border-top:1px solid var(--accent-line);}
  section.pillar-sec:nth-of-type(odd){background:rgba(29,78,158,0.035);}
  .pillar-sec .wrap{display:grid; grid-template-columns:120px 1fr; gap:40px;}
  .sec-mark{display:flex; flex-direction:column; align-items:flex-start; gap:10px;}
  .sec-mark .num{font-family:var(--font-disp); font-weight:700; font-size:44px; color:var(--accent); line-height:1;}
  .sec-mark .tag{font-family:var(--font-mono); font-size:10px; letter-spacing:0.14em; color:var(--muted); writing-mode:vertical-rl;}
  .sec-eyebrow{font-family:var(--font-mono); font-size:11px; letter-spacing:0.16em; color:var(--accent); margin:0 0 14px;}
  .sec-title{font-family:var(--font-disp); font-weight:700; font-size:clamp(23px,3vw,32px); line-height:1.55; margin:0 0 24px; text-wrap:balance;}
  .sec-body > p{max-width:660px; color:var(--ink-soft); font-size:16px; margin:0 0 18px;}
  .sec-body h3{font-family:var(--font-disp); font-weight:700; font-size:18px; margin:38px 0 12px; color:var(--ink);}
  .pull{
    font-family:var(--font-disp); font-weight:700;
    font-size:clamp(19px,2.2vw,24px) !important;
    color:var(--ink) !important;
    border-left:3px solid var(--accent);
    padding:6px 0 6px 20px;
    margin:26px 0 !important; max-width:620px;
    line-height:1.7;
  }
  .exchange{
    font-size:14px; color:var(--ink-soft);
    background:#FFFFFF;
    border:1px solid var(--sea-line); border-radius:14px;
    padding:18px 20px; margin:24px 0; max-width:620px; line-height:1.9;
  }
  .exchange b{font-family:var(--font-mono); color:var(--sea); font-weight:500; margin-right:6px;}
  .exchange b.a{color:var(--accent);}

  .chips{list-style:none; padding:0; margin:18px 0 24px; display:flex; flex-wrap:wrap; gap:10px; max-width:660px;}
  .chips li{
    font-size:14px; font-weight:500; color:var(--ink);
    background:#FFFFFF; border:1px solid var(--accent-line); border-radius:999px;
    padding:6px 16px;
  }
  .chips.sea li{border-color:var(--sea-line); color:var(--sea);}

  .timeline{list-style:none; padding:0; margin:10px 0 0; max-width:660px; border-left:1px solid var(--accent-line);}
  .timeline li{position:relative; padding:0 0 30px 26px;}
  .timeline li::before{
    content:''; position:absolute; left:-6px; top:9px; width:11px; height:11px; border-radius:50%;
    background:var(--bg); border:2px solid var(--accent);
  }
  .timeline .when{display:block; font-family:var(--font-mono); font-size:11px; letter-spacing:0.1em; color:var(--accent);}
  .timeline .what{display:block; font-family:var(--font-disp); font-weight:700; font-size:18px; margin:2px 0 8px;}
  .timeline p{margin:0 0 10px; color:var(--ink-soft); font-size:15.5px;}

  .pair{display:grid; grid-template-columns:1fr 1fr; gap:16px; max-width:660px; margin:22px 0;}
  .card{background:#FFFFFF; border:1px solid var(--accent-line); border-radius:14px; padding:18px 20px;}
  .card .label{font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.12em; color:var(--muted); margin:0 0 6px;}
  .card p{margin:0; font-size:15px; color:var(--ink-soft); line-height:1.8;}
  .card.sea{border-color:var(--sea-line);}

  /* ===== THESIS ===== */
  .thesis{
    padding:124px 0; text-align:center;
    background:radial-gradient(ellipse at 50% 0%, rgba(209,31,26,0.09), transparent 60%), var(--surface);
    border-top:1px solid var(--accent-line); border-bottom:1px solid var(--accent-line);
  }
  .thesis-eyebrow{font-family:var(--font-mono); font-size:11px; letter-spacing:0.2em; color:var(--accent); text-transform:uppercase; margin:0 0 26px;}
  .thesis-line{font-family:var(--font-disp); font-weight:900; font-size:clamp(25px,4.2vw,42px); line-height:1.6; margin:0 auto 26px; max-width:780px; text-wrap:balance;}
  .thesis-line em{font-style:normal; color:var(--accent);}
  .thesis-sub{font-size:14px; color:var(--muted); max-width:520px; margin:0 auto;}

  footer{padding:60px 0 70px; text-align:center;}
  .footer-name{font-family:var(--font-disp); font-weight:900; font-size:22px; margin-bottom:4px;}
  .footer-role{font-family:var(--font-mono); font-size:11px; color:var(--muted); letter-spacing:0.1em; margin-bottom:26px;}
  .footer-note{font-size:12px; color:var(--muted); max-width:520px; margin:0 auto; line-height:1.9;}

  @media (max-width:760px){
    section.pillar-sec{padding:76px 0;}
    .pillar-sec .wrap{grid-template-columns:1fr; gap:18px;}
    .sec-mark{flex-direction:row; align-items:center; gap:14px;}
    .sec-mark .num{font-size:34px;}
    .sec-mark .tag{writing-mode:horizontal-tb;}
    .pillar-num{font-size:14px; margin-bottom:1px;}
    .pillar-jp{font-size:9.5px;}
    .pillar-en{display:none;}
    .pair{grid-template-columns:1fr;}
    .meta-bar span:last-child{display:none;}
  }

  /* ===== MULTI-PAGE ===== */
  .skip{position:absolute; left:-999px; top:8px; background:var(--ink); color:var(--bg); padding:8px 14px; border-radius:8px; z-index:10;}
  .skip:focus{left:8px;}
  .sec-body h2{font-family:var(--font-disp); font-weight:700; font-size:18px; margin:38px 0 12px; color:var(--ink);}

  .site-head{border-bottom:1px solid var(--accent-line); background:rgba(247,247,245,0.94); position:sticky; top:0; z-index:5; backdrop-filter:blur(6px);}
  .site-head .wrap{display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:60px;}
  .brand{display:flex; align-items:center; gap:10px; text-decoration:none;}
  .brand-seal{width:34px; height:34px; border-radius:50%; border:1.5px solid var(--accent); display:flex; align-items:center; justify-content:center; font-family:var(--font-disp); font-weight:900; color:var(--accent); font-size:17px; background:#FFFFFF;}
  .brand-name{font-family:var(--font-disp); font-weight:900; font-size:19px; letter-spacing:0.03em;}
  .head-tag{font-family:var(--font-mono); font-size:11px; letter-spacing:0.1em; color:var(--muted);}

  .chapter-nav{border-bottom:1px solid var(--accent-line);}
  .chapter-nav ol{position:relative; list-style:none; margin:0 auto; padding:12px 24px; max-width:1080px; display:flex; gap:8px; overflow-x:auto; scrollbar-width:thin;}
  .chapter-nav a{display:flex; align-items:center; gap:6px; white-space:nowrap; text-decoration:none; font-size:13px; color:var(--ink-soft); border:1px solid var(--accent-line); border-radius:999px; padding:5px 13px; background:#FFFFFF;}
  .chapter-nav a span{font-family:var(--font-disp); font-weight:700; color:var(--accent);}
  .chapter-nav a:hover{border-color:var(--accent); color:var(--ink);}
  .chapter-nav a[aria-current="page"]{background:var(--accent); border-color:var(--accent); color:#FFFFFF;}
  .chapter-nav a[aria-current="page"] span{color:#FFFFFF;}

  .crumbs{font-family:var(--font-mono); font-size:11px; letter-spacing:0.06em; color:var(--muted); margin:0 0 18px;}
  .crumbs a{color:var(--muted);}
  .chapter{padding:72px 0 96px;}
  .chapter .wrap{display:grid; grid-template-columns:120px 1fr; gap:40px;}
  .chapter .sec-title{font-size:clamp(26px,3.6vw,38px);}

  .pager{border-top:1px solid var(--accent-line); padding:40px 0 20px;}
  .pager .wrap{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
  .pager a{display:block; text-decoration:none; background:#FFFFFF; border:1px solid var(--accent-line); border-radius:14px; padding:18px 20px; transition:border-color .2s;}
  .pager a:hover{border-color:var(--accent);}
  .pager .dir{display:block; font-family:var(--font-mono); font-size:11px; letter-spacing:0.12em; color:var(--muted); margin-bottom:4px;}
  .pager .ttl{font-family:var(--font-disp); font-weight:700; font-size:17px;}
  .pager .next{text-align:right; grid-column:2;}
  .back-home{text-align:center; padding:10px 0 40px;}
  .back-home a{font-family:var(--font-mono); font-size:12px; letter-spacing:0.1em; color:var(--accent);}

  .toc{padding:96px 0; border-top:1px solid var(--accent-line);}
  .toc-head{text-align:center; margin-bottom:44px;}
  .toc-head h2{font-family:var(--font-disp); font-weight:700; font-size:clamp(24px,3vw,32px); margin:0 0 8px;}
  .toc-head p{margin:0; color:var(--muted); font-size:14px;}
  .toc-grid{list-style:none; padding:0; margin:0; display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
  .toc-grid a{display:flex; flex-direction:column; height:100%; text-decoration:none; background:#FFFFFF; border:1px solid var(--accent-line); border-radius:16px; padding:22px 22px 20px; transition:border-color .2s, transform .2s;}
  .toc-grid a:hover{border-color:var(--accent); transform:translateY(-2px);}
  .toc-top{display:flex; align-items:baseline; gap:10px; margin-bottom:10px;}
  .toc-num{font-family:var(--font-disp); font-weight:700; font-size:26px; color:var(--accent); line-height:1;}
  .toc-label{font-size:13px; font-weight:500; color:var(--ink-soft);}
  .toc-en{margin-left:auto; font-family:var(--font-mono); font-size:10px; letter-spacing:0.12em; color:var(--muted);}
  .toc-title{display:block; font-family:var(--font-disp); font-weight:700; font-size:18px; line-height:1.55; margin:0 0 8px; color:var(--ink);}
  .toc-sum{display:block; font-size:13.5px; color:var(--muted); line-height:1.8; margin:0;}

  @media (max-width:900px){ .toc-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:760px){
    .toc{padding:72px 0;}
    .toc-grid{grid-template-columns:1fr;}
    .chapter{padding:48px 0 72px;}
    .chapter .wrap{grid-template-columns:1fr; gap:18px;}
    .pager .wrap{grid-template-columns:1fr;}
    .pager .next{grid-column:1;}
    .head-tag{display:none;}
  }

  /* ===== SPORT (red/blue) ===== */
  .seal{background:var(--accent); border:none; box-shadow:0 0 0 8px rgba(209,31,26,0.1), 0 14px 40px rgba(209,31,26,0.25);}
  .seal-glyph{color:#FFFFFF;}
  .brand-seal{background:var(--accent); border:none; color:#FFFFFF;}
  .pillar-num, .sec-mark .num, .toc-num, .chapter-nav a span, .stat .val{font-family:var(--font-mono); font-style:italic; font-weight:700;}
  .pillar-num{font-size:21px;}
  .sec-mark .num{font-size:56px; letter-spacing:-0.02em;}
  .toc-num{font-size:30px;}
  .kicker, .sec-eyebrow, .thesis-eyebrow, .meta-bar, .head-tag, .crumbs, .pager .dir, .toc-en, .pillar-en, .card .label, .timeline .when, .hero-guide, .scroll-hint, .footer-role, .sec-mark .tag{font-weight:600; letter-spacing:0.14em;}
  .sec-eyebrow{display:flex; align-items:center; gap:10px;}
  .sec-eyebrow::before{content:''; width:22px; height:6px; background:var(--accent); transform:skewX(-24deg);}
  .hero-name, .brand-name, .footer-name{font-style:italic; letter-spacing:0.01em;}
  .orbit-line.r2{border-color:rgba(29,78,158,0.22);}
  .pull{border-left-width:5px;}
  .thesis{background:var(--accent); color:#FFFFFF; border:none;}
  .thesis-eyebrow, .thesis-sub{color:rgba(255,255,255,0.86);}
  .thesis-line em{color:#FFFFFF; box-shadow:inset 0 -0.32em 0 rgba(29,78,158,0.55);}
  .stats{display:grid; grid-template-columns:repeat(2,1fr); gap:14px; max-width:660px; margin:22px 0 30px;}
  .stat{background:#FFFFFF; border:1px solid var(--sea-line); border-top:4px solid var(--sea); border-radius:12px; padding:16px 18px;}
  .stat.main{border-top-color:var(--accent); grid-column:1 / -1;}
  .stat .label{display:block; font-family:var(--font-mono); font-weight:600; font-size:12px; letter-spacing:0.14em; color:var(--muted);}
  .stat .val{display:block; font-size:34px; line-height:1.1; color:var(--sea); margin:4px 0 2px;}
  .stat.main .val{color:var(--accent); font-size:44px;}
  .stat .name{display:block; font-family:var(--font-disp); font-weight:700; font-size:16px; color:var(--ink);}
  .note{font-size:13px !important; color:var(--muted) !important; border-top:1px solid var(--accent-line); padding-top:14px; margin-top:32px !important;}
  .note a{color:var(--sea);}
  @media (max-width:760px){ .stats{grid-template-columns:1fr;} }

  /* ===== FAQ ===== */
  .faq{padding:88px 0; border-top:1px solid var(--accent-line); background:rgba(29,78,158,0.035);}
  .faq-list{max-width:820px; margin:0 auto; display:grid; gap:12px;}
  .faq-item{background:#FFFFFF; border:1px solid var(--sea-line); border-left:5px solid var(--sea); border-radius:12px; padding:18px 22px;}
  .faq-item dt{font-family:var(--font-disp); font-weight:700; font-size:17px; margin:0 0 6px; color:var(--ink);}
  .faq-item dd{margin:0; font-size:15px; color:var(--ink-soft); line-height:1.9;}
  @media (max-width:760px){ .faq{padding:64px 0;} }
  .toc-head .sec-eyebrow{justify-content:center;}
  .stat .val{font-family:var(--font-disp); font-style:normal; font-weight:900; letter-spacing:0.02em;}